As smartphone cameras have beefed up, so have mobile photo editing apps. These days, both iOS and Android users are spoilt for choice. Those looking to make their Instagram posts pop, can choose from a range of free and premium software -- including Adobe's Lightroom and Photoshop Fix apps, VSCO, and Affinity Photo (for the iPad set). Sensing the increasing competition, Google has been adding more tools with each new update to Snapseed. To make more room for the upgrades (including "curves" and "face pose") the app is now getting a fresh interface.